docs: def up(ctx, instance_id):
      """Start EC2 instance"""
      session = create_session(ctx.obj['AWS_PROFILE_NAME'])
      ec2 = session.resource('ec2')
      try:
          instance = ec2.Instance(instance_id)
          instance.start()
      except botocore.exceptions.ClientError as e:
          click.echo("Invalid instance ID {0} ({1})".format(instance_id, e), err=True)
          sys.exit(2)